One of the most often used welding processes for unalloyed structural steels is MAG, which is relatively simple, yet achieving high deposition rates. On the other side, there are standards describing weld quality based on weld geometry. This paper describes influence of heat input on weld geometry for MAG fillet welds of unalloyed steel with thicknesses of 8 mm, in horizontal and overhead position. Independently varied parameters were welding current and speed. Influence is described through models based on linear regression analysis. Comparison is made between models developed for different positions, as well as with those available in literature.

Background: Tuberous Sclerosis Complex (TSC) is an autosomal dominant genetic disorder and involves multiple organs, intellectual disability and epilepsy. Mutations in TSC1 and TSC2 genes are responsible for the molecular disease mechanism. Objective: The aim is to determine molecular background of a patient with a suspicion of TSC. Case presentation: In this case report, we describe a seven year old patient with the clinical manifestation of TSC that includes supratentorial changes, subependymal hamartomas and angifibromas in the facial area. Besides the brain and skin changes, no other TSC characteristics were observed. The patient was referred to molecular genetic testing using Next Generation Sequencing (NGS). Results: Clinical exome sequencing revealed intronic TSC2 c.4849+2T>G variant. The variant was confirmed using Sanger sequencing on the subject. However, the variant was not detected in the parents, which indicated that it arose de-novo. The RegSNP-intron, Mutation Taster and Human Splicing Finder were used as a bioinformatic tools to predict the possible effect on protein. Using bioinformatic tools, it was determined that the variant is possibly damaging to protein. Conclusion: This data suggest that observed splicing intronic variant could be the cause of TSC in this pediatric patient.

The research assessed the level of physical activity (PA) of boys and girls aged 11-14, as well as trends in PA levels. The sample included a total of 433 children aged 11-14, comprising 238 boys and 195 girls. PA was assessed using the FELS questionnaire, which included questions about the frequency of PA in sports, PA during leisure time, PA at home, and overall PA. To determine the trend in PA levels across specific domains and overall, trend analysis was applied, followed by comparisons using the LSD Post Hoc Test. Data were processed using the SPSS statistical package (p < .05). The results showed that boys had significantly higher levels of PA across all periods compared to girls. Significant changes in PA levels among boys were observed in the domain of PA in sports (Sig. = < .001) and overall PA (Sig. = .008). A significant decline in PA in sports among boys was noted between the ages of 11 and 13, as well as between 11 and 14 years, while the decline in overall PA was observed between the ages of 11 and 13. Among girls, a decline in PA in the domain of household chores was identified between the ages of 11 and 14. In the domain of overall PA, significant decreases were observed between the ages of 11 and 13, 11 and 14, 12 and 13, and 12 and 14. It was found that PA among children aged 11-14 significantly decreases around the ages of 12 and 13. Efforts should focus on promoting PA within this population group and identifying appropriate strategies to increase or at least maintain PA levels during this critical period.

Background: The scientific researchers have the role of interacting through published articles in scientific journals or presentations at scientific and professional conferences where they can affect the practices that can make achievements to society and country. or worldwide. Objective: The aim of this article was to describe bibliometric indexes and explained its importance for its evaluation and measuring quality assessment of published papers in scientific journals and advantages and disadvantages of current bibliometric portals for creating the list of universities and its academic staff by counts of deposited articles in databases and number of its citations. Methods: The author searched the most influential online databases and analyzed deposited papers by bibliometric indexes, and used a descriptive method to review important facts about bibliometrics experiences in scientific and academic practice. The author used facts deposited on the main international portals for analyzing number of citations of deposited scientific papers on Scopus and Google Scholar platform–h–Index and i10-Index and number of citations as basic data for created top list of most citated scientists in almost of all countries in the world. Results and Discussion: Bibliometric methods are used for quantitative analysis of written materials. Citation is influenced by: article quality, understanding of the article, language in which the article is written, loyalty to a group of researchers, article type, etc. Some indicators used in evaluating scientific work are Impact factor (IF); Citation of the article; Journal citations; Number and order of authors, etc. The index factor of influence depends on the quality of the journal, the language in which it was printed, the area it covers, and the journal distribution system. The portals and its platforms: Webometrics, “AD Scientific Index” and Stanford Bibliometric List are not fully relevant for measuring quality assessment of universities and its academic staff. Conclusion: Current academies and academicians can propose criteria how improve indexing scientific papers with the consultation of scientific bodies and experts at universities in one country, selected regions, or worldwide. These criteria should be necessary for quality assessment of the scientific curriculum of scientists and their published papers in scientific journals.

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Background: Degenerative aortic stenosis is a prevalent and severe condition necessitating aortic valve replacement (AVR) when the valve area critically narrows to 0.7 cm² or when symptoms are manifested. Traditional AVR via median sternotomy, poses considerable risks for patients with comorbidities or advanced age. Objective: This study evaluates the efficacy and safety of mini sternotomy aortic valve replacement (MSAVR), a minimally invasive technique designed to reduce surgical trauma, improve postoperative recovery, and lower healthcare costs. Methods: A reversed L-type upper partial sternotomy (RLUPS) approach was performed in five patients focusing on standardized surgical procedures, and rigorous postoperative care. Key findings indicate that MSAVR markedly reduces postoperative complications, ICU stay, and overall hospital stay compared to traditional sternotomy. Results: The median postoperative length of stay was seven days for MSAVR versus 12 days for traditional sternotomy, with ICU stays of 52 hours and 119 hours, respectively. Our study also highlights the cost-effectiveness of MSAVR, with decreased hospital costs per patient due to reduced ICU resource utilization and shorter hospital stays. These findings suggest that MSAVR is a valuable and advantageous alternative to traditional sternotomy, offering substantial benefits in terms of patient outcomes and healthcare efficiency. Conclusion: Our work underscores the potential of minimally invasive techniques in improving the management of severe degenerative aortic stenosis, marking a significant advancement in the field of cardiac surgery.

The first industrial robots appeared in the production processes of the 60s of the last century, and they are implemented to this day in all production processes in the world. The biggest application of industrial robots has been found in three industries in the world: the automotive industry, the electrical/electronic industry and the metal industry. The automotive industry is the first to implement the most industrial robots, and in recent years the electrical/electronics industry has also joined in, as these two industries in the world implement more than 60% of the total industrial robots implemented in the world. The use of industrial robots has been used to perform those tasks that are tiring and hazardous to the health of workers, which include welding, and the performance of these operations is mostly n the automotive industry. To date, the most implemented industrial robots of the first generation, which are robustly surrounded by fences (for the protection of workers), take up a lot of space and are complicated to reprogram. Development of new technologies such as: sensor technology, Internet of Things (IoT), big data, „cloud computing“, virtual and augmented reality (AR), artificial intelligence (AI), advanced security systems and others is credited with the development of robotic technology. In this paper is shown the trend of implementing industrial robots and their role in the welding process.

This study aims to identify the cybersecurity awareness of university students from Bosnia and Herzegovina, Serbia, and Montenegro in the following aspects: a) Malware, b) Password usage, c) Phishing, d) Social engineering, and e) Online scams. A quantitative-qualitative research approach was used. Data for the quantitative section were collected using the Cyber Security Behaviour Instrument questionnaire (Muniandy et al., 2017). In the qualitative section, five semi-structured interviews were conducted with students about their behaviour and protection on the internet. Research has shown that respondents apply some good, but still also some weak or dangerous cybersecurity practices in above mentioned aspects. That confirms that the human element remains a critical vulnerability for individuals, businesses, and societies facing rapidly evolving online threats, and that we urgently need the improvement of personal cyber hygiene. The findings highlight strengths and weaknesses in respondents’ knowledge and behaviours related to cybersecurity, underscoring the need for continuous education and awareness-raising to improve internet security practices.

Multi-purpose reservoir Modrac is the most important water resource in Tuzla canton( northeastern Bosnia and Herzegovina). Ecologically acceptable flow on dam Modrac is not adjusted with the latest Rulebook about methods of determining ecologically acceptable flow. Modrac reservoir with upstream and downstream flow of Spreca river is categorized as a protected water resource due to its susceptibility to eutrophication and according to current legislation, requires a second level of ecologically acceptable flow assessment. This paper shows the methods used to determine ecologically acceptable flow on the Modrac dam, respecting the fact that reservoir Modrac is declared as protected water resource. The given calculation of ecologically acceptable flow is made for II level of evaluation